Vaginal speculum, 1870-1901.

This type of vaginal specula has four blades and was invented by Meadows. It is made out of steel and was constructed by S. Maw Son and Thompson of London, England. Once the speculum had been inserted into the vagina the four blades could be spread out to allow internal examination. Vaginal specula are used in the diagnosis and treatment of vaginal and uterine disorders.